Patent US2932951A successfully refreshed from Google Patents.
US2932951A
Expired / Lapsed
US
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Forming apparatus
Assignee: General Dynamics Corp
•
Filing: 1957-03-08
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Granted: 1960-04-19
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Expires: 1977-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jack B Ottestad
- 👤 Samuel A Skeen
- 👤 Vall Richard C Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:33
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB430825A
Cited
US2099368A
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US2150026A
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US2452292A
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US2437077A
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US2608059A
Cited
US2580262A
Cited
US2644307A
Cited
US2605612A
Cited
US2805447A
Cited
US2780204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |